Add 72/90 and 42/24
1st number: 72/90, 2nd number: 1 18/24
72/90 + 42/24 is 51/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
72/90 = 72 × 4/90 × 4 = 288/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
42/24 = 42 × 15/24 × 15 = 630/360 - Add the two like fractions:
288/360 + 630/360 = 288 + 630/360 = 918/360 - 918/360 simplified gives 51/20
- So, 72/90 + 42/24 = 51/20
In mixed form: 211/20
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